Music streaming with excellent sound qualityLevel dependent Active Listening microphonesComfortable headband with soft paddingHearing protection with Bluetooth for music streaming. Xstream connects via Bluetooth to your phone for wireless music streaming and phone calls. Your hearing is protected while you enjoy your favourite music with excellent sound quality, and the built-in speech microphone allows you to make phone calls. A boom-microphone is available as an accessory for those who need clearer speech quality in high noise. Active listening microphones in each earcup ensure excellent directional hearing, offer natural sounds and enables you to hear conversations, warning signals and other important information without compromising protection